1216362055 has 8 divisors (see below), whose sum is σ = 1474682832. Its totient is φ = 963057408.

The previous prime is 1216362011. The next prime is 1216362067. The reversal of 1216362055 is 5502636121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1216362055 - 2¹⁵ = 1216329287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1253497 + ... + 1254466.

It is an arithmetic number, because the mean of its divisors is an integer number (184335354).

Almost surely, 2^1216362055 is an apocalyptic number.

1216362055 is a deficient number, since it is larger than the sum of its proper divisors (258320777).

1216362055 is an equidigital number, since it uses as much as digits as its factorization.

1216362055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2508065.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 1216362055 is about 34876.3824815591. The cubic root of 1216362055 is about 1067.4665818891.

Adding to 1216362055 its reverse (5502636121), we get a palindrome (6718998176).

The spelling of 1216362055 in words is "one billion, two hundred sixteen million, three hundred sixty-two thousand, fifty-five".